Conical-roller bearing.



I Patented Nay l3, I902. J. B. LARNED, J. L. PARKER 8.. J. A. JOYCE.

CONIOAL ROLLER BEARING. (Application filed 20, 1901.

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JOSHUA B. LARNED, JAMES L. PARKER, AND JAMES A. JOYCE, OF

CLEVELAND, OHIO.

CONlGAL-ROLLER BEARING.

SPECTFICATION forming part of Letters Patent N 0. 700,145, dated May 13,1902.

- Application filed January 26, 1901. Serial No. 44,939. No model.)

and State of Ohio, have invented a new and Improved Oohical-Rolle'rBearing, of which the following is a clear, full, and exact description.r

The object of the invention is to provide a bearing for heavy loadswhich will distribute the load evenly'ov'er its supports and so arranged that'it may be turned with as little power as possible, making itan easy and convenient bearing to turn heavy loads upon, such asengines, boilers, heavy bridge members, &c.

The invention consists of novelfeatures and-parts and combinations ofthe same, as will be fully described hereinafter andthen pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in bothviews.

Figure 1 shows a top View of the center with one-half of the uppersection removed to show Fig. 2 shows a central vertical sectional view.

The conical-roller bearing illustrated in the drawings is provided withan upper section A and a lower section B, each of which has awearing-surface arranged to bear evenly on a nest of conical rollers O,interposed between the said upper section A and the lower section B. p a

The rollers C are arranged to rest and to roll on the wearing-surface ofthe lower sec tion B. The upper section A is arranged to rest on the topof the nest of 1'ollers,'*and when the bearing is turned around therollers rests and rolls onthe bearing-surfaces of the upper and lowersections, thereby causing a purely roller-bearing.

The rollers are conical in shape, so that they will roll on thecircular-roller bearing-surface of the upper and lower sections of thebearing. The rollers are provided with a journal or trunnion attheirinner and outer ends. The journal H at the outer end of the rollersis arranged to support a rotative ring D.

This ring is to take the thrust due to the roller being conical. Eachroller is provided witha'bcaring on the ring. The friction due to theroller bearing on the ring may be reduced in several different ways,such as disks or annular rings 61 to take the hearing; but we prefer touse in this case balls arranged to roll in annular grooves orball-races. An annular ball-grooveor ball-race is provided in each ofthe rings d, these rings'being arranged in the rotative ringD and in thelarger end of each roller. Balls are interposed between thetwoconfronting annular grooves or ball-races, These balls provide anantifriction bearing for the end of each roller. NVhen theupper'sectionA is revolved in a horizonproduced' bythe rollers beingtaken by the ring offers little or no resistance to turning the uppersection'A with a very heavy load upon it. These annular ball races orgrooves may be cut in the ring and rollers, or they may be made inseparate pieces and fitted into the ring and into the ends of therollers, as shown.

The upper section A is provided with a space on top, which may bechanged to suit Whatever the bearing is to be used for, such as the endof a shaft. A pair of girders for an engine turn-table or a street-carturn-table or, in fact, anything may be fitted to this bearing that isto be revolved in a horizontal plane. The upper section A is alsoprovided with a vertical flange f, which is arranged to cover the ringand to fitto the lower section B, so asto practically exclude all dustand.

dirt and to allow the rollers, balls, and ring the freedom of movementand to keep out all dust and dirt.

The upper section A is provided with a recess, into which a pin J isinserted. The upper section A is pivotally fixed to pin J. This pin Jholds the upper section A in a firm position, so that the upper sect-ionA cannot be knocked out of position. v

The lower section B is provided with means of securing it to itsfoundation. The said lower section B is made fiat on-the bottom, so thatthe load upon the center is distributed evenly over its supports.

The inner end of each roller is provided with a journal I, whichpivotally fits in center ring K. This center ring is to keep the innerends of the rollers in their proper position. 'lhisring K is pivotallyfitted to center pin J, which further holds the rollers in position.

The upper section A is provided with lugs L, which are used only to shipand to handle the completed center. They coincide with lugs M, which areused to secure the lower section B to the foundation; but for thepurpose of keeping, the center in its proper relative position a bolt isput through the holes in lugs L and M, and by this means the upper andlower sections are secured together with all the interior parts in theirproper positions, which affords an easy and convenient method ofshipping the. completed center. After the center reaches its destinationthe bolts are removed and the lower section B is secured to thefoundation and the upper section is free to revolve orturn in ahorizontal plane. The center is intended to run in oil and is providedwith a plug and outlet N, which serves to drain the oil off when it becomes necessary to put fresh oil in the center. A hole 6 is provided ata convenient place in the upper section for putting in fresh oil.

Having thus fully described our invention, we claim as new and desire tosecure by Letters Patent- 1. In a roller-bearing, the combination of alower section having an inclined wearing-surface and an annularupwardly-extending flange, an uppersection havingawearing-surfaceinclined in the reverse direction to the wearing-surface of the lowersection, said upper section having a downwardly-extending annular flangewhich incloses the upperportion of the flange of the lower section, aseries of conical bearing-rollers arranged on thewearing-surface of thelower section and engaged by the wearing-surface of the upper section, apin loosely mounted in central recesses provided therefor in the lowerface of the upper section and upper face of the lower sectionrespectively, a center ring carried by said pin and circumferentiallyrecessed on its underneath face to receive trunnions on the inner endsof the conical rollers, a rotative ring having apertures to receivetrunnions on the outer ends of the conical rollers, andantifriction-bearings between the ends of the rollers and the rotativering, substantially as described.

2. In a roller-bearing, the combination of a lower section havingawearing-surface and an upwardly-extending annular flange, an uppersection having a wearing-surface and a downwardly-extending annularflange that surrounds the upper portion of the flange of the lowersection, said upper section having a central oil-aperture, a series ofcircumferentially-arranged conical bearing-rollers e11- gagged by thewearing-surfaces of the sections, a pin fitted in central recessesprovided therefor in the lower face of the upper section and upper faceof the lower section, a center ring mounted on said pin to receivetrunnions on the inner ends of said rollers, grooved bearing-rings insaid rotative ring and in the outer ends of the rollers, andantifriction-bearings in said grooved bearing-rings, substantially asdescribed.

JOSHUA l3. LARNED. JAMES L. PARKER. JAMES A. JOYCE. Vitnesses:

O. W.'STUTE, W. L. KNOX.

